Hello everyone ,
I need help for my forward swept wing . .
I tried to replicate the nano drak by rite wing planes .
I went for the madain and it nose dived as soon as it was launched , the cg was set to 1 inch from leading edge .
So I shifted back the cg to 3.3 inches buy now as soon as it is launched is rotates at its own axis in forward direction it does two flips and comes down .
I am not sure what is happening   
Wing span approx 41 inches .
Root chord approx 10 inches and tip chord approx 4 inches
Flying with 2212 2200 kV motor and 0747 prop and 3s 2200 mah battery

@maanyat periwal,

1. It doesn't have inherent pitch stability
2. Looks like you don't have a flight controller/ stabilisation system
3. No model can tolerate the extreme changes of CG you mention. Normally not more than a cm or so from the correct location (for a model of this size)

Not a suitable choice, by far, for entry into RC flying. (Neither is an A10 Warthog  )

If you look up 'pitch stability', you'll get some insight into the problem.

Don't let initial failures curb your enthusiasm. Keep at it.
But one has to learn to ride a bicycle before trying to ride a Bullet, no?

Best wishes
Iyer